Aw: Re: r-cran.mk: Allow R package source tree as a subtree of larger project

[Steffen Möller <steffen_moeller@gmx.de>]

Hi Dirk,

> Gesendet: Donnerstag, 11. September 2025 um 21:19
> Von: "Dirk Eddelbuettel" <edd@debian.org>
>
> Quick suggestion: as you need a one-off fix, can you start by just including
> a local (and modified as below) copy of r-cran.mk and call that?  We are not
> required to all use the identical script...
> 

I like the idea. But then again, the package seems functional without
anything included to arrow's d/rules, it is only that the variables
in d/control are not substituted (like in particular  ${R:Depends}) and
I do not want to set then manually.

The change of := to ?= in the r-cran.mk script I considered beneficial for all,
so I put it here for an opportunity to discuss it. Am less confident about the
subdir. I think I would prefer some recursive Debian packaging, instead. Like,
have arrow/r/debian introduced and the packages it comes up with would show
as packages within arrow/debian.

My motivation is the automated synchronicity between the R package and the main
library. Could imagine that other large projects would also benefit from that,
though.

Best,
Steffen

Found out I _am_ subscribed to debian-r :)